If the big ones don't get ya', the little ones will kill ya'.

"Little sins, like little thieves, may open the door to greater ones outside. Christians, recollect that little sins will spoil your communion with Christ. Little sins, like little stains in silk, may damage the fine texture of fellowship. Little sins, like little irregularities in the machinery,
may spoil the whole fabric of your religion. The one dead fly spoils the whole pot of ointment. That one thistle may seed a continent with noxious weeds. Let us, Brethren, kill our sins as often as we can find them. Someone said—'The heart is full of unclean birds. It is a cage of them.' 'Ah, but,' said another Divine, 'you must not make that an apology— for a Christian’s business is to wring their necks.'

And so it is. If there are evil things, it is our business to kill them. Christians must not tolerate secret sins. We must not harbor traitors. It is high treason against the King of Heaven. Let us drag them out into the light and offer them upon the altar, giving up the dearest of our secret
sins at the will and bidding of God. There is great danger in a little secret sin. Therefore avoid it, pass not by it, turn from it, and shun it—and God give you Divine Grace to overcome it!"

Charles H. Spurgeon